How to modify MySQL fields to capitalize the first letter

How to modify the MySQL field to capitalize the first letter: First, use LEFT to remove the first letter separately and use UPPER to capitalize it; then determine the length of the field, and use SBUSTRING to remove all fields from the second to the end for later use; then Use CONCAT to connect the two values ​​above; finally, the value of the update table field can be modified.

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How to modify the MySQL field to capitalize the first letter:

Explanation function:

• ##CONCAT( str1, str2)Character concatenation function

• UPPER(str)Change the string to uppercase letters

• LOWER(str)Change the string to lowercase letters

• LENGTH(str)Determine the length of the string

• SUBSTRING(str,a,b)Extract a section of the field, starting from the a-th position of the string str, and extracting b characters

• LEFT(str,n)Extract the leftmost n characters of the string

• RIGHT(str,n)Extract characters The rightmost n characters of the string

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